Buick Regal V (2009-2013) hvac control module (behind center of dash, on hvac assembly) Wiring diagrams

1850 1541 7574 7573 (OR 5486) 65 67 A/C COMPRESSOR SOLENOID VALVE (LEFT FRONT OF ENGINE) BLK WIRE BLOWER MTR SPD CTRL BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN HIGH SPEED RELAY COOLING FAN LOW SPEED RELAY COOLING FAN RELAY COOLING FAN SPEED CONTROL RELAY DEFOGGER SYSTEM FUSE FUSE 42 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HUMIDITY SENS SIG TWILIGHT SENTINEL DELAY SIG HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INSIDE AIR TEMP SENS SIG HUMIDITY TEMP SENS SIG 5-VOLT REF INSIDE MOISTURE SENSOR (FRONT CENTER OF ROOF) LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LINEAR INTERCONNECT NETWORK BUS 9 LOGIC LOW REF OF ENGINE COMPT) REAR DEFOG RLY CTRL RED/BLU WIRE RED/WHT WIRE SOLAR SENS DRV SIG UNDERHOOD FUSE BLOCK (LEFT SIDE VIO/BLU WIRE VIO/BRN WIRE WINDSCREEN TEMP SENS SIG WINDSHIELD TEMPERATURE, YEL WIRE YEL/BLU WIRE YEL/VIO WIRE

A/C SENS SIG AIR INLET DOOR ACTUATOR (RIGHT SIDE OF HVAC MODULE) AIR RECIRCULATION DOOR ACTUATOR (MOUNTED TO HVAC MODULE) BATT+ VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/PNK WIRE BLK/WHT WIRE BLU WIRE BRN/DK GRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENG TEMP SENS SIG ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GMLAN SERIAL DATA GRN WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HI SPD FAN RLY CTRL HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) LEFT AIR TEMPERATURE DOOR ACTUATOR (LEFT SIDE OF HVAC ASSEMBLY) LO REF LO SPD FAN RLY CTRL LOGIC LOW REF LOWER LEFT AIR TEMP SENS SIG LOWER RIGHT AIR TEMP SENS SIG MODE DOOR ACTUATOR (LEFT SIDE OF HVAC ASSEMBLY) ORG/ WIRE ORG/BLK WIRE ORG/DK BLU WIRE PPL/DK BLU WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RIGHT AIR TEMPERATURE DOOR ACTUATOR (RIGHT SIDE OF HVAC MODULE) SENS LOW REF TAN WIRE TEMP DR STEPPER MTR CTRL 1 VIO/GRY WIRE WHT WIRE WHT/BLK WIRE WHT/PNK WIRE WHT/PPL WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1850 1541 7574 7573 (OR 5486) 65 67 A/C COMPRESSOR SOLENOID VALVE (LEFT FRONT OF ENGINE) BLK WIRE BLK/GRN (OR GRN/BLK) WIRE BLK/GRN WIRE BLOWER MTR SPD CTRL BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM COOLING FAN LOW SPEED RELAY COOLING FAN SPEED CONTROL RELAY DEFOGGER SYSTEM DK BLU (OR BRN/YEL) WIRE DK BLU WIRE DK GRN (OR LT GRN/VIO) WIRE DK GRN WIRE FUSE 42 FUSE 45 FUSE 46 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HUMIDITY SENS SIG TWILIGHT SENTINEL DELAY SIG HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INSIDE AIR TEMP SENS SIG HUMIDITY TEMP SENS SIG 5-VOLT REF INSIDE MOISTURE SENSOR (FRONT CENTER OF ROOF) LEFT COOLING FAN HIGH SPEED RELAY LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LEFT FRONT STRUT TOWER) LINEAR INTERCONNECT NETWORK BUS 9 LOGIC LOW REF OF ENGINE COMPT) PNK WIRE REAR DEFOG RLY CTRL RED/BLU WIRE RED/WHT WIRE RED/YEL (OR WHT/BLU) WIRE RED/YEL WIRE RIGHT HEADLAMP ASSEMBLY SOLAR SENS DRV SIG TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE VIO/BRN WIRE WINDSCREEN TEMP SENS SIG WINDSHIELD TEMPERATURE, YEL/VIO WIRE

A/C SENS SIG AIR INLET DOOR ACTUATOR (RIGHT SIDE OF HVAC MODULE) AIR RECIRCULATION DOOR ACTUATOR (MOUNTED TO HVAC MODULE) BATT+ VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/PNK WIRE BLK/WHT WIRE BRN/DK GRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENG TEMP SENS SIG ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GMLAN SERIAL DATA GRN WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HI SPD FAN RLY CTRL HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) LEFT AIR TEMPERATURE DOOR ACTUATOR (LEFT SIDE OF HVAC ASSEMBLY) LO REF LO SPD FAN RLY CTRL LOGIC LOW REF LOWER LEFT AIR TEMP SENS SIG LOWER RIGHT AIR TEMP SENS SIG MODE DOOR ACTUATOR (LEFT SIDE OF HVAC ASSEMBLY) ORG/ WIRE ORG/BLK WIRE ORG/DK BLU WIRE PPL/DK BLU WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RIGHT AIR TEMPERATURE DOOR ACTUATOR (RIGHT SIDE OF HVAC MODULE) SENS LOW REF TAN (OR BLK/BRN) WIRE TAN WIRE TAN/BLK WIRE TEMP DR STEPPER MTR CTRL 1 VIO/GRY WIRE WHT WIRE WHT/PNK WIRE WHT/PPL WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

12 10 1 HI SPD DATA - HI SPD DATA + LOW SPD DATA 23 24 HI SPD DATA - HI SPD DATA + 24 25 16 9 10 HI SPD DATA + HI SPD DATA - 25 24 HI SPD DATA + HI SPD DATA - 4 2 NETWORK BUS 9 LOW SPD DATA 6 7 HI SPD DATA + HI SPD DATA - SERIAL DATA COMM ENABLE ACC/RUN/IGN 0 VOLT WAKEUP SERIAL DATA 22 23 BLU WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE DRIVER WINDOW MOTOR (DRIVER'S DOOR) DRIVER WINDOW SWITCH ELECTRONIC BRAKE CONTROL MODULE FUEL PUMP CONTROL MODULE (RIGHT REAR OF LUGGAGE COMPT) GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (BELOW CENTER CONSOLE) INSTRUMENT CLUSTER LOW SPD DATA MULTIMEDIA PLAYER INTERFACE MODULE NCA WIRE NETWORK BUS 1 NETWORK BUS 2 NETWORK BUS 3 NETWORK BUS 3 PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEEL LINEAR) PASSENGER PRESENCE DETECTION MODULE (REAR OF FRONT PASSENGER'S SEAT) PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) REAR PARKING ASSIST CONTROL MODULE (LEFT REAR OF LUGGAGE COMPT) SERIAL DATA COMM ENABLE SUSPENSION CONTROL MODULE (LEFT REAR OF LUGGAGE COMPT) W/ AUDIO INTERFACE W/ REAR PARKING ASSIST INDICATOR SENSOR WHT WIRE WHT/BLU WIRE

BARE BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BRN WIRE BRN/VIO WIRE BRN/YEL WIRE DRIVER OUTSIDE REARVIEW MIRROR GLASS DRIVER OUTSIDE REARVIEW MIRROR FUSE 28 FUSE 5 FUSE 60 GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) HVAC CONTROLS LEFT FRONT OF ENGINE COMPT, UNDER FRONT OF BATTERY TRAY) LEFT REAR WINDOW DEFOGGER NOISE FILTER (TOP OF LEFT "C" PILLAR) LOGIC NETWORK 9 PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER REARVIEW OUTSIDE MIRROR GLASS REAR DEFOG RLY CTRL REAR DEFOGGER GRID REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER SWITCH RED WIRE RIGHT REAR WINDOW DEFOGGER NOISE FILTER (TOP OF RIGHT "C" PILLAR) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

1 21 GND SECURITY INDICATOR CTRL 19 18 HORN RLY HI BEAM RLY 4 6 NETWORK 3 LF DR AJAR SW SIG ACTUATOR RECEIVE SIG REMOTE FUNCTION ACTUATOR SPLY VOLT REMOTE FUNCTION ACTUATOR TRANSMIT SIG AIR CONDITIONING SYSTEM AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) BATT POSITIVE VOLT BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BREAKOUT TO WINDOW MOTOR) BRN WIRE BRN/BLK WIRE BRN/DK GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CHILD SECURITY CHILD SECURITY LK MTR STATUS SIG LH REAR CHILD SECURITY LK MTR STATUS SIG RH REAR CHILD SECURITY LK RLY CTRL COMPUTER DATA LINES SYSTEM DR LOCK ACTUATOR LOCK CTRL DR LOCK ACTUATOR LOCK CTRL 2 DR LOCK ACTUATOR UNLOCK CTRL DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER (DIC) DISPLAY DRIVER WINDOW MOTOR (DRIVER'S DOOR) DRV DR LOCK MTR STS CTRL DRV DR LOCK SW LOCK SIG DRV DR LOCK SW UNLCK SIG FUEL DOOR LOCK ACTUATOR (RIGHT REAR WHEEL WELL NEAR FUEL DOOR) FUSE GMLAN SERIAL DATA GRN WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE HOOD AJAR SW SIG HOOD AJAR SWITCH (FRONT OF ENGINE COMPT) HORNS SYSTEM HEADLIGHTS SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) INSTRUMENT PANEL MULTIFUNCTION SWITCH 1 LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LO SPD SERIAL DATA LOCK DISABLE RELAY LOGIC DRIVER WINDOW SWITCH LOGIC SECURITY IND LOW REF LR DOOR AJAR SW SIG LT BLU/WHT WIRE NETWORK 3 NETWORK BUS 4 PASSENGER COMPARTMENT) PASSENGER DOOR (FLOOR AT RIGHT "B" PILLAR, FURTHEST LATCH ASSEMBLY PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) REAR COMPARTMENT LID LATCH (IN TRUNK LID) REAR COMPT AJAR SW SIG 1 REMOTE FUNCTION REMOTE FUNCTION ACTUATOR RTN RF DR AJAR SW SIG RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DOOR AJAR SW SIG VIO/GRY WIRE VIO/YEL WIRE WHT/BLU WIRE WHT/VIO WIRE YEL/LT GRN WIRE

1 21 3 GND SECURITY INDICATOR CTRL BATT POSITIVE VOLT 4 6 NETWORK 3 LF DR AJAR SW SIG ACTUATOR RECEIVE SIG REMOTE FUNCTION ACTUATOR SPLY VOLT REMOTE FUNCTION ACTUATOR TRANSMIT SIG ACTUATOR TRANSMIT SIG REMOTE FUNCTION AIR CONDITIONING SYSTEM AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/DK GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DR LOCK ACTUATOR LOCK CTRL DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER (DIC) DISPLAY DRIVER WINDOW MOTOR (DRIVER'S DOOR) DRV DR LOCK MTR STS CTRL DRV DR LOCK SW LOCK SIG DRV DR LOCK SW UNLCK SIG FUEL DOOR LOCK ACTUATOR (RIGHT REAR WHEEL WELL NEAR FUEL DOOR) FUSE GMLAN SERIAL DATA GRN WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HI BEAM RLY HOOD AJAR SW SIG HORN RLY HORNS SYSTEM HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INSTRUMENT CLUSTER INSTRUMENT PANEL MULTIFUNCTION SWITCH 1 LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LO SPD SERIAL DATA LOGIC LOGIC DRIVER WINDOW SWITCH LOW REF LR DOOR AJAR SW SIG LT BLU/WHT WIRE NETWORK 3 NETWORK BUS 4 PASSENGER COMPARTMENT) PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) REAR COMPARTMENT LID LATCH (IN TRUNK LID) REMOTE FUNCTION ACTUATOR RTN RF DR AJAR SW SIG RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DOOR AJAR SW SIG SECURITY INDICATOR VIO/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL/LT GRN WIRE

1 2 RH HDLP LOW BEAM SPY V LH HDLP LOW BEAM SPY V 13 18 10 HDLP LW BEAM RLY CTRL HDLP HI BEAM RLY CTRL FOG LAMP RLY CTRL 2 3 B+ B+ 22 11 16 HDLP SW PARK LP SIG 23 24 HS SPD GMLAN SER DATA- HS SPD GMLAN SER DATA+ 2501 2500 COMPUTER DATA LINES SYSTEM AIR CONDITIONING SYSTEM AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) BLK WIRE BLU WIRE BLU/BRN WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE DIM SW LOW ENGINE COMPT) FRONT FOG LAMP FTP FUSE FUSE 37 FUSE 38 FUSE FUSE 48 FUSE FUSE GRN/BRN WIRE GRN/GRY WIRE GROUND GRY WIRE GRY/BLU WIRE HDLP DIMMER SW HI BEAM SIG HDLP OFF SIG CTRL HDLP SW ON SIG HDLP SW FLASH TO PASS SIG HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT FRONT PARK LAMP LEFT HEADLAMP LEFT HEADLAMP BALLAST LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LOW REF NCA WIRE ORG/BLK WIRE RED WIRE RED/BRN WIRE RELAY RIGHT FRONT PARK LAMP RIGHT HEADLAMP RIGHT HEADLAMP BALLAST RIGHT HIGH BEAM SOLENOID ACTUATOR RIGHT LOW BEAM HEADLAMP TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) WHT WIRE WHT/BRN WIRE YEL WIRE

1 2 RT HDLP LW BEAM SPLY VOLT LT HDLP LW BEAM SPLY VOLT 17 11 HDLP SW FLASH TO PASS SIG HDLP DIMMER SW HI BEAM SIG 18 10 HDLP HI BEAM RLY CTRL 2 3 B+ B+ 22 11 16 HDLP SW PARK LP SIG AIR CONDITIONING SYSTEM AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) AUTO OFF BLK WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL, SOUND SYSTEMS DIMMER SWITCH DRIVER INFOR- MATION CENTER DISPLAY LOGIC INSTRUMENT CLUSTER ENGINE COMPT) FOG LAMP RLY CTRL FOG LAMP SWITCH FRONT FOG LAMP IND FRONT FOG LAMP RELAY FTP FUSE FUSE 48 FUSE FUSE GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GROUND GRY WIRE HDLP OFF SIG CTRL HDLP SW ON SIG HEAD HEADLAMP HIGH BEAM RELAY HEADLAMP SWITCH HIGH BEAM LAMP IND HIGH LOW HOT AT ALL TIMES HOT AT ALL TIMES BATTERY FUSE BLOCK (TOP OF BATTERY) HOT W/ IGNITION RUN RELAY ENERGIZED HS SPD GMLAN SER DATA- HS SPD GMLAN SER DATA+ HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) IGN INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT FRONT FOG LAMP LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LOW REF LOW SPD GMLAN SER DATA ORG/BLK WIRE PARK AUTO OFF HEAD PARK RED WIRE RED/BLK WIRE RIGHT FRONT FOG LAMP RIGHT HEADLAMP LEFT HEADLAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/YEL WIRE WHT WIRE WHT/BRN WIRE YEL WIRE